Improvement in brick-machines



3 Sheets-Sheet 1. T. J. DAVIS.

. BRICK-MACHINE. No.187,359, Patented Feb. 1 3, 1877.

7 El .f z

N.PETERS, PHDTO-LJTHDGRAPHER, WASHINGYON, D C.

SSheets-Sheet 2. T. J. DAVIS.f

' Y BRICK-MACHINE.

N0.187,359 Patented Feb. 13, 1877.

.PETERS, PNDTO-LITHOGRAPHER. WASH1N`GYON. D C- 's {sheets-sheet 3. T. J. DAVIS.

BRICK-MACHINE. N.187,359. Patented Feb.1s,1877.

N.PETERS, PHOTO-LITMCGRAFHER, WASHINGTON. D. CA

f THOMAS JEFFERSON DAvIS, oF FAIRHAVEN, Nnvv'YOgKl nvlpnoovlaivizurnu;BRiek-MAclflltuas.- l

specification forming part qf'neaers Patent No. l 87,359, dated February 13,1877; appimatiqntad o i Angu'st 12,1876.

To all whom t may concern:

Be 'it known that I, THOMAS JEFFERSON DAVs,-of.Fairhaven, in the county of' Cayuga, State of New York, have made a new and useful ImprovementV in Brick Machines, ot" Which thefollowing is the specification:

This invention relatesV to a machine, having a series of brick-molds arranged upon an endT less belt, which 'moldsare successively carriedunder a hopper -filled with tempered clay, from which they are filled, and then the molds are moved forward under two sets of plungers, the rsl of which-presses the bricks. tofthe hardness required, `and the second set of plungers press the finished bricks out at lthe bottoms'ot' the molds upon an apron or belt, which delivers the nished bricksx at one side of' the machine.

lThe invention will be readily understood by reference to the accompanying drawings, ot' Whichi Figure I is a longitudinal sectional elevation of the machine, part of the frame-work being'broken out to show the cam-work that operates parts of the machine. Fig. Il is a general plan 'of thesame. Fig. Ill is a side elevation of the discharge side of the machine. Fig. 1V is a transverse sectional elevation, taken through the center oi' thebelt or apron that discharges the finished bricks from the machine.

All the operative parts of this machine are built upon or attached to the frame A, at or near one end of' which is placed the stock-hopper A1, which is to be filled with tempered clay, that, as fast as required, passes out through an opening, a, at the lbottom of the hopper and into a series of molds, B, which are successively drawn under the said opening a. A gate or slide, A2, is arranged to slide under the opening a', and cut off the discharge of clay into the molds as each successive set ot' molds is iilled. The gate or slide A2 is arranged to act automatically, as will be hereinafter more fully explained The molds B are arranged in sets, and are connected together by the straps b, so as to forni an endless belt or chain of' molds. This belt or chain of molds passes over or around the outsides of two polygonal drums, B1 B2, which are supported by means ot' suitable Aaxles bl and and the fixed plattenG.

bzon some suitable partof' the frame A. One of the' ends of' the axle b1 carries a ratchetwlleel, B3, by which motion is imparted to the train lof' molds. o A

-A heavy metal bed-plate O is placed' under the top part ofltlie'ftraiuof moldsk between the bearing-drums Bl and-B2, which-said bed.- plate is fixed to ther frame A, and ,forms a stop. for the bottomY ot' molds where the clay enters them, andal'so afplatten agaii1st` ivl1ich the'bricks are pressed by the plungers vD. Lhese plungers D are arranged to fit nicely into the molds B, one plunger to each mold, and the whole set of plungers is attachedto the moving platten D, which is,moved up and down bythe` rod D?, thesadrod'being actuated by the crank 4'orYcompression-shat't E, which has its bearings in V,the top part of the frame A., {At eachrevolutinofthe shaft. E the plungers D are pressed'ldown and4 raised uponce, and one 'set oil bricks are ,thereby` thoroughly pressed betweenth'ese plungers D A second set of `plungers are placed'just in front of' theplungersDyand these are attached to the moving platten El, which -is operated by therplungeifrodfliz. The top e'nd ot' this plunger-rod is attached. to the `spring-bar G,.one end of whiehlis xedlfto the t'rame A, and the other end'of it is free, the action ot' the spring being to habitually raise the said rod F2 and its connections up. The free end of' the springbar Gr passes beyond the rod l2 and extends under the shaft E, and at each revolution of the shaft the cams E3 strike against the end of the spring-bar G, and press it and its connections down f'ar enough for the plungers F to pass clear through the molds B, and thereby press their contents out at the bottom of said molds, and upon the transverse apron or belt H that carries the finished bricks, thus delivered upon it, out at one side of the machine, Where the attendants can receive them and bear them off from the machine.

The apron or belt conveyer H may be simply a belt of leather passing around two drums or pulleys, H1 H2, which are placed on opposite sides ofthe machine. These drums or pulleys receive their motion in a manner hereinafter described.

The arrangement of the parts is such that the chain of molds B has an intermittent motion, and stops positively under the hopperopening a, and under each of the plungers D and F, and the distances between the centers of a. and D, and D and F, being equal the train of molds must be made to move forward after each stop just that distance.

This motion is made in the followingmanner:

The machine receives itsV motion from the driving-pulley i on the driving-shaft I'. A cog-wheel, i, on 011e end of this shaft gears into and communicates motion to the wheel EI of the shaft E. Another wheel, e, upon the shaft E gears into and comnnnunicates 1notion to the wheel J upon the counter-shaft J', and a cog-wheel,j, upon the other end of this counter-shaft gears into a cog-wheel, E2, upon the other end of the shaft E, which is thus driven by gearing upon both its ends, as will be required, owing to the crank that operates the rod l)2 being in its center. The wheel E2 carries upon its inner face a cam, el, which, at

each revolution ofthe machine, strikes against.

and operates the cam-rods K K', which said rods are 'respectively pivoted to the frame A at 1c and k1, and they are connected together by means of the link k2so that they move together either up or down. A link, k3, connects the rod K' with lever, L, which is pivoted to the frame A at l and has a vertical motion imparted to it by the said link 102.

As is shown in Fig. III, the free end of the lever L is connected,by means of the link b', with a pawl-rod, M, the pawl of which engages the serrations of the ratchet-wheel B3. At each revolution of the shaft E, then the cam e1 will actuate the rods K K', and these, in turn, will moveA the link k3, and that the lever L, which'will impart the required motion to the ratchet-Wheel B3, and so the train of molds will be set in motion, as has been already described. v

A pawl, N, pivoted to the frame A at n, is used to drop against the molds, and cause them to stop at the exact point for the reception of the plungersD and F. A lng, n', on one side ot' the pawl-rod projects outward, so as to be engaged by the lever L, and as the said lever is raised up it will raise the pawl with it, and so free it from its hold against the mold, and allow .the train of molds to move forward another step.

The gate or slide A2 that closes the aperture at the bottom ofthe stock-hopper is moved forward and backward by means of the lever O, which is fulcrumed .at o to the frame A, on the outside of which the said lever is connected, by means of two links, P P', with two levers Q Q', which said levers are fulcrumed at q to the frame A. The upper ends of these levers 'are free, and as the shaft E revolves, the cam e1 -strikes the top end of the lever Q, and causes it to close the slide A2. A pin, 62, upon the outside of the wheel E2 strikes against the top end of the lever Q', and causes it to open the slide A2. The pulley H1 that drives the belt-conveyer H is placed upon a longitudinal counter-shaft, H3., which receives its motion fromthe bevel gearwheelh, which is actuated by the bevel gearwheel B upon thefshaft b'.

Having thus described my invention, I desire to claim 1. The plnngers F, with their rods F2, and the spring-bar G, arranged and operated as and for the purpose set forth.

2. The automatic mechanism el, K, K', k2, k3, L, M, and B3, for operating the train of molds, as and for the purpose set forth.

3. The pawl N, arranged` and operated as and for the purpose set forth.

4. The valve or gate A2, with its operating mechanism O, P, P', Q, Q', el, and e2, arranged as and for the purpose set forth.

This specification' signed this 13th day of June, 1876.

THOMAS JEFFERSON DAVIS. i

Witnesses RIcHD. GERNER, F. BARRI'LT.

NUN- 

